Incubator humidifier



March 10'. 1925.

' v 1,529,129 D. M. HoLBRooK INCUBATOR HUMIDIFIER Filed Aug. 24, 1922 2 Sheets-Sheet l Mach 10. 1925.

D. M. HoLBRooK INCUBATOR HUMIDIFIER Filed Aug. 24, 1922 l1 El Wmme Ww oww/@(9,

a M HOM/@off v 2 Sheets-Sheet'. A2

Snom/LM- Vea @lt/koud man Patented Mar. 10, 1.925u

UNITED STATES )DAVID M. HoLBRooK, on PORTLAND, OREGON.

INCUBATOR HUMIDIFIER.

Application filed August 24, 1922. Serial No. 534,150.`

To all vof/mm 'ift may concern.'

Be it known that l., DAVID LNI. HoLB'nooK, a citizen ofthe United States, .residing .at Portland, lin Vthe lcounty 'of Multnomah v'and State of Oregon, have invented certain new and usefull Improvements in Incubator Humidifiers; and l do declare the following to be a full, clear, .and exact description Jo't the invention, such as. will 'enable 'others skilled in the art vto which it appertains to make `and use the same.

My invention relates to improvements yin humidifying devices `for incnbators and is directed to certain subject `matter 'originally shown yby my U. S. application which Aterminated in Patent 1,417,522 of May 30th, 1922, but 'waseliminated Aon accountof a requirement of division. l y L The present` invention has for its principal object to provide -a humidifier including a water tank in communication with the incubator and provided with a water circulating pipe heated by the usual incubator lamp, whereby the water of the tank is caused to give up vapor for moistening the air within the incubator, the arrangement being such that while the water-circulating pipe passes across the chimney of the lamp, it will not interfere with removal of the lamp and chimney when the former is to 'be illed or its wick trimmed.

A further object is to provide an arrangement which is such as to permit the lamp to be adjusted in such a manner that more or less of its thin flat flame, may play upon the water circulating pipe, whereby to heat the water in the humidifying tank to a greater or less extent, as may be necessary.

lith the foregoing and minor objects in view, the invention resides in the novel subject matter hereinafter described and claimed, the description being supplemented by the accompanying drawings.

Figure 1 is a front elevation of an incubator equipped with my invention, parts being shown in vertical section.

Figure 2 is a vertical transverse section taken on line 2 2 of Fig. 1 with parts in elevation.

Figure 3 is a horizontal section as indicated by line 3 3 of Fig. 1.

Figure 4 is a detached perspective View ot the humidifying tank and its water circulating pipe.

In the drawings above briefly described, the numeral 1 designates an incubator having a Vcasing 2 secured on one end, said casingcontaininfga vertical sleeve in the npper portion Yof 'which a vboiler 4 is located, said vvboiler having water circuflating pipe leading intothe incubator. The lnumeral '6 merely designates a reservoir lon top ot the casing '2 'for keeping the boiler and the pipes 5 fufllpf'water, being in communication with one lof said pipes by means of a pipe 7'. Suspended 'by' .links or the like 8 from ethe bottom of the .casing :2, yiis an appropriate lamp 9 whose chimney a() extends "into the lower fend -of the'sle'eve, said chimney being Iprovided with vertical slots 11 which open through its upper end "for Va to appear.

'Vrithin the casing 2 and preferablyii-nt-erposed 'between thefsleeve 3 and the incubator 1*. isa j'humidifying tank 12 open gits upper I`end 'whereby 'it may I -c'o'mnrtrnicate with the interior of the incubatorl 1, through `the medium of an appropriate passage 13,

shown in Fig. 2. At spaced points, a pair of angular pipes 14 depend from the bottom of the tank 12 and one of these pipes preferably extends into the tank to a greater.

extent than the other, the two pipes being purpose connected by a horizontal pipe 15 which passes across the lower end ofthe sleeve 3 and is received in the slots 11 of the lampl chimney 10". It will thus be seen that the flame of the lamp, indicated in Figs. 1 and 2 by the numeral 16, will heat the pipe 15 and cause circulation of water through this pipe and the humidifying tank 12, thereby causing the water in this tank to give ofi.l vapor which may pass to the incubator through the passage 13,. Attention may here be directed to the fact that by sett-ing the burner of the lamp 9 so that its fiat flame 16 plays longitudinally upon the pipe 15, maximum heating of the latter may beeffected, but by turning said burner so that the flame plays obliquely or at right angles to the pipe 15, the latter will be heated to a lesser degree, due to the restricted part of the flame then acting upon the pipe. Thus, the extent to which the water in the tank is heated, may `be controlled in the required manner.

Water may either be supplied to the tank 12 by means of a Water supply pipe 17 connected with the pipe 15 or by means of a short vertical pipe 18 which rises through the top of the casing 2, and the rate of water circulation may be controlled by an appro# priate valve 19 positioned at any suitable point. The pipev1-8 preferably extends to quite an extent into the tank 12 so that when this tank is substantially full of Water, no steam Will be discharged through said pipe 18, but When the Water level lowers to an undesirable extent, vthe attendant of the incubator is warned by steam escaping through the pipe 18, so that the Water supply may be replenished. When using the pipe 18 as an indicator as above described, the cap on the upper end thereof should be left ont' or fitted .loosely so as to permit the escape of steam through the pipe.

From the foregoing taken in connection with thefaccompanying drawings, it will be seen that although my invention is simple and inexpensive, it Will be highly eiicient' and desirable for the `purpose intended. Since excellent results may be obtained vtrom vt-he details disclosed, they may yWell be ollowed, but within the. scope of the invention as claimed, numerous minor changes may vof .course be made. l

I claim: A f

1. A humidifying device comprising an open vvended tank for communication With a f chamber, a Water circulating pipe connected with said tank and having a horizontal portion, a vertically disposed sleeve across the ylower end'of which said horizontal pipe extends, and a lamp supported 'below said sleeve and havingya chimney received in the latter, both sides of said chimney being formed With vertical slots opening through its upper end and receiving said horizontal pipe portion. j i

y 2. The combination with an incubator havingV an external casing, an upstanding boiler containing sleeve-rising .through the latter, and a lamp supportedbelow said sleeve and having a chimney ypositioned removably Within the lower end of said sleeve;

of a humidit'ying tank open at its upper end and positionedbet-Ween said ksleeve and the incubator, angular pipes depending from said humidi'fying tank, and a horizontal pipe connecting said angular pipes and extending across the lower end of said sleevev to provide "Water circulating means,` the. f

Kn-Avm ivi. noLBnooK.

receiving said horizontal 

